Haiku: Wrong menu order & missing Syntax menu

[bitigchi]

Normally, gVim should have a menu bar order of "File, Edit, Tools, Syntax, Buffers, Window, Help". However, in Haiku the order is as follows: "File, Edit, Tools, Help, Buffers". "Syntax" menu is missing as well. Haiku version should have an identical gVim menu order to other platforms.

To Reproduce
Detailed steps to reproduce the behavior:

1. Run gvim

Expected behavior
gVim should have full stack of menus.

Screenshots

Environment (please complete the following information):

• Vim version 8.2.0628
• Latest Haiku nightly

haikuports/haikuports#4897
haikuports/haikuports#4896

[bitigchi]

I had a look at the code for this, and have a few questions:

1. If menu.vim handles all the layout and content, how does it interface with the GUI code, specifically with OS GUI files?
2. What might Haiku GUI code could have done differently to have it out of order when compared to the other OS files? Is it from a previous state of Vim GUI, presumably from the 90s?
3. I compared the runtime files install with the Mac version, seem to be identical, no missing files or anything. Do we need to enable something specifically for the Haiku build?